Plug assembly and connector

Abstract

The plug assembly comprises a plug seat, the plug seat is provided with a first direction and a second direction which are perpendicular to each other, the plug seat is provided with a mounting hole extending along the first direction and a jack extending along the second direction, and the jack is communicated with the mounting hole. The outer wall of the plug seat is convexly provided with a lock catch part; the terminal is inserted into the mounting hole and is used for connecting an electric wire; and the limiting piece comprises a plug body and a lock body which are connected with each other, the plug body is inserted into the jack and abuts against the terminal so as to press and fix the terminal in the plug seat, and the lock body is connected with the lock catch part in a buckling manner. According to the connector provided by the utility model, the relative freedom degree of the terminals and the plug seat is well limited by the limiting pieces, the terminal retreat phenomenon caused by the interaction force between the terminals is avoided, and the loosening and displacement of the terminals caused by the elastic aging of the abutting parts can be prevented, so that the installation reliability of the terminals is substantially improved, and the electrical connection performance of the connector is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, and in particular to a plug assembly and a connector. Background Art

[0002] In the related technologies, with the sharp increase in the output of new energy vehicles, the process of automobile intelligent upgrading is also constantly advancing. The connector of the key component plays an important role as the hub of signal or energy transmission, and the assembled connector is required to have excellent contact performance. In particular, when the terminals of the connector are plugged in, due to the interaction force between the terminals, the terminals are prone to retreat, affecting the electrical connection performance of the connector, and the elasticity of the abutment fails after aging, resulting in the reliability of the terminal being inserted into the plug body. It is necessary to solve the problem of the terminal retreating due to the aging and unreliable terminal connection through the abutment in the plug. Utility Model Content

[0003] The utility model aims to provide a plug assembly and a connector, which are used to solve the problem that the terminal in the prior art has a retreat phenomenon and the reliability of terminal installation is reduced.

[0004] According to one aspect of the utility model, there is provided a plug assembly, comprising:

[0005] A plug socket, the plug socket having a first direction and a second direction perpendicular to each other, the plug socket being provided with a mounting hole extending along the first direction, and a plug hole extending along the second direction, the plug hole being communicated with the mounting hole, and a locking portion being convexly provided on an outer wall of the plug socket;

[0006] A terminal, which is inserted into the mounting hole and is used to connect an electric wire; and

[0007] The limiting member includes an insert body and a lock body connected to each other, the insert body is inserted into the jack and abuts against the terminal to press and fix the terminal in the plug socket, and the lock body is snap-connected with the locking portion.

[0008] In one of the embodiments, the first direction is consistent with the insertion direction of the plug assembly, the mounting hole passes through the front and rear ends of the plug socket, the second direction is consistent with the width direction of the plug socket, and the plug hole passes through the left and right ends of the plug socket; the terminal is provided with a positioning groove, and the plug body is provided with a positioning protrusion arranged toward the terminal, and the positioning protrusion is clamped in the positioning groove.

[0009] In one of the embodiments, the locking portion includes a snap-fit ​​rib extending along the first direction, and a supporting rib connected to one end of the snap-fit ​​rib and extending along the second direction, and the lock body is snap-connected to the snap-fit ​​rib.

[0010] In one of the embodiments, the end surface of the plug socket corresponding to the jack opening is also provided with a convex bump, and the convex bump is abutted against the inner side surface of the root of the lock body for positioning.

[0011] In one of the embodiments, the convex bump is concavely arranged to form a limiting groove, and a limiting convex rib is convexly arranged on the inner side surface of the root of the lock body, and the limiting rib is clamped in the limiting groove.

[0012] In one of the embodiments, the lock body is further provided with a guide side edge extending along the second direction and protruding along the first direction, and the plug seat is further provided with a guide boss located inside the plug, and the guide side edge is slidably mounted on the guide boss.

[0013] In one embodiment, the plug socket includes a main body and an elastic pressure plate movably connected to the top surface of the main body, the elastic pressure plate and the main body form the insertion hole, and the lock body is also provided with a crimping surface, and the crimping surface is crimped and matched with the elastic pressure plate.

[0014] In one of the embodiments, a first limit stop arm and a second limit stop arm are respectively protruding from both sides of the top surface of the main body in the width direction, and a first baffle plate and a second baffle plate are respectively formed on both sides of the width direction of the elastic pressure plate, the first baffle plate abuts against the first limit stop arm for limiting position, and the second baffle plate abuts against the second limit stop arm for limiting position.

[0015] In one embodiment, the terminal is further provided with a first rivet plate and a second rivet plate spaced apart along the insertion direction of the wire;

[0016] The terminal is also provided with a protective chamfer.

[0017] According to another aspect of the present invention, there is also provided a connector, comprising:

[0018] a socket assembly having contact pins installed therein; and

[0019] As for the plug assembly as described above, the plug assembly is plug-assembled with the socket assembly so that the contact pins are in contact with the terminals for electrical conduction.

[0020] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0021] When the plug assembly of the present scheme is assembled and processed, the terminal can be first inserted into the mounting hole along the first direction, and pre-fixed by abutting against the hole wall of the mounting hole, and then the limit piece and the plug socket are installed and matched. Specifically, the plug body is aligned with the socket and inserted into the socket along the second direction so that the plug body presses and fixes the terminal. At this time, the lock body is automatically snap-connected with the lock part to ensure that the limit piece and the plug socket are firmly assembled; at this point, the limit piece has well limited the relative freedom of the terminal and the plug socket, avoiding the mutual force between the terminals causing the terminal to retreat, and can prevent the elastic aging of the abutment part from causing the terminal to loosen and shift, thereby fundamentally improving the installation reliability of the terminal to ensure the electrical connection performance of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic structural diagram of a plug socket according to an embodiment;

[0024] Figure 2 for Figure 1 A right view structural diagram of ;

[0025] Figure 3 for Figure 1 A schematic diagram of a top view structure;

[0026] Figure 4 This is a schematic structural diagram of a position limiting member according to an embodiment;

[0027] Figure 5 for Figure 4 A structural diagram from another perspective;

[0028] Figure 6 for Figure 5 A structural diagram from another perspective;

[0029] Figure 7 Schematic diagram of the structure of a terminal according to an embodiment.

[0030] in:

[0031] 10, plug socket; 11, mounting hole; 12, jack; 13, locking part; 131, snap-fit ​​rib; 132, supporting rib; 14, convex bump; 141, limiting groove; 15, guide boss; 16, elastic pressure plate; 161, first baffle; 162, second baffle; 17, main body; 171, first limiting arm; 172, second limiting arm; 20, terminal; 21, positioning groove; 22, first rivet sheet; 23, second rivet sheet; 24, protective chamfer; 30, limiting piece; 31, plug body; 311, positioning convex part; 32, lock body; 321, limiting rib; 322, guide side edge; 323, crimping surface. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0035] Please refer to Figure 1-Figure 7, is a plug assembly described in an embodiment, including a plug socket 10, the plug socket 10 has a first direction and a second direction perpendicular to each other, the plug socket 10 is provided with a mounting hole 11 extending along the first direction, and is provided with a plug hole 12 extending along the second direction, the plug hole 12 is connected to the mounting hole 11, and the outer wall of the plug socket 10 is convexly provided with a locking portion 13; a terminal 20, the terminal 20 is inserted into the mounting hole 11 and is used to connect the wire; and a limiting member 30, the limiting member 30 includes a plug body 31 and a lock body 32 connected to each other, the plug body 31 is inserted into the plug hole 12 and abuts against the terminal 20 to press and fix the terminal 20 in the plug socket 10, and the lock body 32 is snap-connected with the locking portion 13.

[0036] The first direction corresponds to Figure 1 The F1 arrow in the figure points to the direction of the second arrow, which corresponds to Figure 1 The arrow in F2 points to .

[0037] The implementation of the embodiment of the utility model will have the following beneficial effects: when the plug assembly of the present scheme is assembled and processed, the terminal 20 can be first inserted into the mounting hole 11 along the first direction, and pre-fixed by abutting against the hole wall of the mounting hole 11, and then the limiting member 30 is installed and matched with the plug socket 10, specifically, the plug body 31 is aligned with the plug hole 12 and inserted into the plug hole 12 along the second direction, so that the plug body 31 presses and fixes the terminal 20, and at this time the lock body 32 is automatically snap-connected with the lock part 13 to ensure that the limiting member 30 and the plug socket 10 are firmly assembled; at this point, the limiting member 30 well limits the relative freedom of the terminal 20 and the plug socket 10, avoids the mutual force between the terminals 20 causing the terminal 20 to retreat, and can prevent the elastic aging of the abutment part from causing the terminal 20 to loosen and shift, fundamentally and greatly improving the installation reliability of the terminal 20, so as to ensure the electrical connection performance of the connector.

[0038] That is, in this case, the double limiting effect of the restraining force applied by the hole wall of the mounting hole 11 and the pressing force applied by the card body well ensures the firmness of the installation of the terminal 20.

[0039] In one embodiment, the plug socket 10 has a rectangular block structure, so the first direction is consistent with the plug-in direction of the plug assembly and corresponds to the length direction of the plug socket 10, and the mounting hole 11 passes through the front and rear ends of the plug socket 10. After the terminal 20 plug assembly is assembled, when it is plugged into the socket assembly, the contact pin of the socket assembly can extend into the mounting hole 11 and contact and conduct with the terminal 20.

[0040] The second direction is consistent with the width direction of the plug socket 10, and the plug hole 12 passes through the left and right ends of the plug socket 10. This can avoid the problem of interference caused by the plug body 31 or the plug hole 12 not being able to be properly installed in the plug hole 12 due to machining size errors.

[0041] like Figures 4 to 7 The terminal 20 is provided with a positioning groove 21, and the plug body 31 is provided with a positioning protrusion 311 arranged toward the terminal 20, and the positioning protrusion 311 is clamped in the positioning groove 21. When the plug body 31 is inserted into the preset installation position in the plug hole 12, the positioning protrusion 311 is automatically inserted into the positioning groove 21, and abuts against the groove wall of the positioning groove 21 to limit the freedom of the terminal 20, thereby improving the installation firmness of the terminal 20.

[0042] In one embodiment, the lock portion 13 includes a snap-fit ​​rib 131 extending along the first direction, and a support rib 132 connected to one end of the snap-fit ​​rib 131 and extending along the second direction, and the lock body 32 is snap-fitted with the snap-fit ​​rib 131. The snap-fit ​​rib 131 is snap-fitted with the lock body 32, so that the stopper 30 and the plug socket 10 are assembled and fixed. At this time, the snap-fit ​​rib 131 is a force-bearing member, and the support rib 132 is just provided to support and reinforce the snap-fit ​​rib 131, so as to prevent the snap-fit ​​rib 131 from being deformed due to excessive force and failing to effectively lock the stopper 30, or even breaking and failing.

[0043] Furthermore, the end surface of the plug socket 10 corresponding to the hole of the jack 12 is also convexly provided with a convex bump 14, which is in contact with the inner side surface of the root of the lock body 32. The convex bump 14 can support and position the lock body 32, and form a certain gap between the lock body 32 and the side surface of the plug socket 10 to facilitate secondary disassembly and assembly.

[0044] It should be noted that the surface where the convex hump 14 contacts the lock body 32 is a plane, or the surface where the convex hump 14 contacts the lock body 32 is designed to be an adaptive concave-convex arc surface, thereby increasing the contact area between the convex hump 14 and the lock body 32, so that the convex hump 14 can firmly support the lock body 32.

[0045] Furthermore, the convex bump 14 is concavely formed to form a limiting groove 141, and a limiting convex rib 321 is convexly provided on the inner side surface of the root of the lock body 32, and the limiting convex rib 321 is clamped in the limiting groove 141. The limiting convex rib 321 is clamped in the limiting groove 141 to form a positioning installation for the lock body 32, so as to prevent the lock body 32 from shifting and shaking to the left and right, and to prevent the plug body 31 from squeezing the terminal 20 in multiple directions, causing the terminal 20 to be deformed and damaged, and affecting the signal transmission quality of the terminal 20. For example, in this embodiment, the limiting groove 141 is a strip groove extending along the height (i.e., thickness) direction of the plug socket 10, and the preferably limiting groove 141 has an arc-shaped cross section. Correspondingly, the limiting rib 321 is also a strip-shaped rib, and the cross section is an arc-shaped. In this way, the raised arc surface and the recessed arc surface can form a sliding guide effect, which is more conducive to reducing the difficulty of alignment and insertion between the limiting rib 321 and the limiting groove 141.

[0046] In addition, in another embodiment, the lock body 32 is further provided with a guide side edge 322 extending along the second direction and extending and protruding along the first direction, and the plug socket 10 is further provided with a guide boss 15 located in the plug, and the guide side edge 322 is slidably mounted on the guide boss 15. During the movement of the plug body 31 inserted into the plug hole 12, the guide side edge 322 slides along the guide boss 15 synchronously, thereby forming a guiding and lateral support and limiting function for the plug body 31, ensuring that the plug body 31 is directly inserted into the plug hole 12, thereby improving the smoothness of the insertion.

[0047] In another embodiment, the plug socket 10 includes a main body 17 and an elastic pressure plate 16 movably connected to the top surface of the main body 17, and one end of the elastic pressure plate 16 is fixed on the main body 17 so that the elastic pressure plate 16 forms a cantilever structure.

[0048] The elastic pressing plate 16 and the main body 17 form the insertion hole 12, and the lock body 32 is also provided with a crimping surface 323, which is crimped and matched with the elastic pressing plate 16. In the initial state, the aperture of the insertion hole 12 is smaller than the size of the plug body 31. When the plug body 31 is inserted into the insertion hole 12, the elastic pressing plate 16 will be squeezed by the plug body 31 and will swing outward away from the main body 17. At this time, the elastic pressing plate 16 will apply a reactionary elastic pressure to the plug body 31, thereby pressing the plug body 31 toward the terminal 20, thereby further improving the limiting and restraining effect of the plug body 31 on the terminal 20.

[0049] like Figure 2As shown, in addition, on the basis of the above embodiment, the top surface of the main body 17 is respectively provided with a first limit arm 171 and a second limit arm 172 on both sides in the width direction, and the elastic pressure plate 16 is respectively formed with a first baffle 161 and a second baffle 162 on both sides in the width direction, the first baffle 161 abuts against the first limit arm 171 for position limiting, and the second baffle 162 abuts against the second limit arm 172 for position limiting. In this way, the elastic pressure plate 16 can be prevented from being subjected to excessive squeezing force of the insert 31 and undergoing excessively large irreversible deformation, which affects the secondary assembly and disassembly of the elastic pressure plate 16. It can be understood that the elastic pressure plate 16 is preferably made of metal or plastic material with excellent elastic properties, which can be selected according to actual needs.

[0050] However, it should be noted that in the initial state, a gap of preset width is reserved between the first baffle plate 161 and the first limit arm 171, and between the second baffle plate 162 and the second limit arm 172, and the gap provides the travel required for the outward swing deformation of the elastic pressure plate 16.

[0051] In one embodiment, the terminal 20 is further provided with a first rivet piece 22 and a second rivet piece 23 which are spaced apart along the insertion direction of the wire. When the wire is assembled with the terminal 20, the first rivet piece 22 is bent and covered on the outside of the protective rubber layer of the wire to achieve a primary connection and fixation, and then the second rivet piece 23 is bent and covered on the outside of the wire core to achieve a secondary connection and fixation, that is, the two connection structures can ensure that the connection between the wire and the terminal 20 is firm and reliable, and has a strong pull-out resistance.

[0052] Furthermore, the terminal 20 in the present application is also provided with a protective chamfer 24 to prevent the plastic wall of the mounting hole 11 from being scratched during the process of the terminal 20 being inserted into the plug socket 10.

[0053] In summary, the present application also provides a connector, including a socket assembly, wherein a contact pin is installed inside the socket assembly and a plug assembly as described in any of the above embodiments, and the plug assembly and the socket assembly are plugged together to make the contact pin contact and electrically conduct with the terminal 20.

[0054] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent application. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A plug assembly, characterized in that: include: A plug socket, the plug socket having a first direction and a second direction perpendicular to each other, the plug socket being provided with a mounting hole extending along the first direction, and a plug hole extending along the second direction, the plug hole being communicated with the mounting hole, and a locking portion being convexly provided on an outer wall of the plug socket; A terminal, which is inserted into the mounting hole and is used to connect an electric wire; and The limiting member includes an insert body and a lock body connected to each other, the insert body is inserted into the jack and abuts against the terminal to press and fix the terminal in the plug socket, and the lock body is snap-connected with the locking portion.

2. The plug assembly according to claim 1, characterized in that: The first direction is consistent with the insertion direction of the plug assembly, and the mounting hole passes through the front and rear ends of the plug socket. The second direction is consistent with the width direction of the plug socket, and the plug hole passes through the left and right ends of the plug socket. The terminal is provided with a positioning groove, and the plug body is provided with a positioning protrusion arranged toward the terminal, and the positioning protrusion is clamped in the positioning groove.

3. The plug assembly according to claim 1, characterized in that: The locking portion includes a snap-fitting rib extending along the first direction, and a supporting rib connected to one end of the snap-fitting rib and extending along the second direction, and the lock body is snap-fittedly connected to the snap-fitting rib.

4. The plug assembly according to claim 1, characterized in that: The end surface of the plug socket corresponding to the jack hole is also convexly provided with a convex bump, and the convex bump is abutted against the inner side surface of the root of the lock body for positioning.

5. The plug assembly according to claim 4, characterized in that: The convex bump is concavely arranged to form a limiting groove, and a limiting convex rib is convexly arranged on the inner side surface of the root of the lock body, and the limiting rib is clamped in the limiting groove.

6. The plug assembly according to claim 1, characterized in that: The lock body is further provided with a guide side edge extending along the second direction and extending and protruding along the first direction, and the plug seat is further provided with a guide boss located inside the plug, and the guide side edge is slidably mounted on the guide boss.

7. The plug assembly according to claim 1, characterized in that: The plug socket includes a main body and an elastic pressing plate movably connected to the top surface of the main body, the elastic pressing plate and the main body form the insertion hole, and the lock body is also provided with a crimping surface, and the crimping surface is crimped and matched with the elastic pressing plate.

8. The plug assembly according to claim 7, characterized in that: The top surface of the main body is provided with a first limit stop arm and a second limit stop arm on both sides in the width direction, and the elastic pressure plate is provided with a first baffle plate and a second baffle plate on both sides in the width direction, the first baffle plate abuts against the first limit stop arm for limiting position, and the second baffle plate abuts against the second limit stop arm for limiting position.

9. The plug assembly according to claim 1, characterized in that: The terminal is also provided with a first riveting piece and a second riveting piece spaced apart along the insertion direction of the electric wire; The terminal is also provided with a protective chamfer.

10. A connector, characterized in that: include: A socket assembly, wherein a contact pin is installed inside the socket assembly; as well as The plug assembly according to any one of claims 1 to 9, wherein the plug assembly is plug-assembled with the socket assembly so that the contact pin is in electrical contact with the terminal.

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